Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Aug 2004
MRI of helium-3 gas in healthy lungs: posture related variations of alveolar size.
To probe the variation of alveolar size in healthy lung tissue as a function of posture using diffusion-weighted helium-3 hyperpolarized gas imaging. ⋯ The posture dependent variations in ADC were attributed to compression of the parenchyma under its own weight and the mass of the heart.